Home / 54,518-115,640

Finding the Third Proportional to 54,518 and 115,640

Calculator

Solution

The third proportional to 54,518 and 115,640 is: 245,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,518 : 115,640 = 115,640 : x
  2. Step 2: Convert to fraction form
    54,518/115,640 = 115,640/x
  3. Step 3: Cross multiply
    54,518x = 115,640 × 115,640
  4. Step 4: Simplify right side
    54,518x = 13,372,609,600
  5. Step 5: Solve for x
    x = 13,372,609,600/54,518
  6. Step 6: Final answer
    x = 245,287.97

Related Problems

Find third proportional to 27,259 and 57,820
Half scale
Find third proportional to 109,036 and 231,280
Double scale
Find third proportional to 54,520 and 115,644
Similar ratio
Find third proportional to 81,777 and 173,460
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.